Anna Brouwer

0 50 100 150 200 a b peak 100 µV ms DTLatfornixposition DTLatlowerlidposition b a a b b a 10.0 cds/m 2 3.0 cds/m 2 1.0 cds/m 2 0.3 cds/m 2 30 Hz icker response Figure 2: Representative example of ERG curves obtained from the same patient with the DTL at the lower lid position (black) and the fornix position (grey). Abbreviations: DTL = Dawson, Trick, Litzkov electrode, ERG = electroretinogram -2 0 2 4 1.0 4.0 Amplitude ratio (LLP/FP) Implicit time difference (LLP-FP) 0.4 -4 logartithmic scale Uveitis eyes Unaffected eyes Median Figure 3: Scatterplots showing the implicit time differences (implicit time of LLP - LP) and amplitude ratio (LLP/FP) of the electroretinogram results all eyes for the light adapted b-wave 3.0 a cds/m 2 . Uveitis eyes are indicated in as circles and unaffected eyes as squares. The large diamond indicates the median amplitude ratio (1.15) and mean implicit time difference (0.07). 146 Chapter 7